1. Possible mammoth tooth found in waters off NH: A New Hampshire fisherman has discovered whale vertebrae, porpoise skulls and an old fuel tank that he thought was a treasure chest. Now, he may have hit the big time: a possible mammoth tooth.

4. $100M Calif. mansion has unusual sale requirement: As if the $100 million asking price wasn't deterrent enough, the owner of a mansion for sale in a ritzy San Francisco suburb says the buyer can move in only after his death.